S
M
T
W
T
F
S
29
71°
63°
30
75°
59°
31
77°
61°
1
76°
60°
2
78°
61°
3
80°
66°
4
80°
65°
5
82°
66°
6
72°
64°
7
67°
63°
8
72°
65°
9
72°
65°
10
75°
64°
11
76°
65°
12
78°
66°
13
82°
63°
14
82°
62°
15
81°
64°
16
83°
63°
17
83°
66°
18
81°
65°
19
85°
65°
20
84°
66°
21
82°
60°
22
82°
63°
23
83°
64°
24
83°
64°
25
82°
65°
26
81°
65°
27
82°
64°
28
81°
64°
29
78°
63°
30
79°
64°
1
79°
64°
2
82°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in St. Augustine South
St. Augustine South's April 2026 forecast shows daily high temperatures ranging from 72° to 85°, with overnight lows between 60° and 66°. The average high for April is 80° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in St. Augustine South. See also: May | June | July.
